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Yao LL, Zhang SQ, Guo C, Li BX, Yang HJ, Yin TP, Cai L. A new C 19-diterpenoid alkaloid in Aconitum georgei Comber. Nat Prod Res 2024; 38:85-90. [PMID: 35913407 DOI: 10.1080/14786419.2022.2104276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/17/2022] [Indexed: 10/16/2022]
Abstract
Nine diterpenoid alkaloids were isolated from Aconitum georgei Comber belonging to the genus Aconitum in Ranunculaceae family. Their structures were determinated by using HR-ESI-MS and 1 D/2D NMR spectra as geordine (1), yunaconitine (2), chasmanine (3), crassicauline A (4), forestine (5), pseudaconine (6), 14-acetylalatisamine (7), austroconitine B (8), and talatisamine (9). Among them, compound 1 is a previously undescribed aconitine-type C19-diterpenoid alkaloid, and compounds 3, and 5-9 have not previously been isolated from this species. The results of in vitro experiments indicated that new compound 1 possesses mild anti-inflammatory activity, which inhibited the production of NO in LPS-activated RAW 264.7 cells with an inhibition ratio of 29.75% at 50 μM.
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Affiliation(s)
- Lin-Lin Yao
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
- Faculty of Bioengineering, Zhuhai Campus of Zunyi Medical University, Guangdong, P.R. China
| | - Sheng-Qi Zhang
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
| | - Ce Guo
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
| | - Bin-Xian Li
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
| | - Hua-Juan Yang
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
| | - Tian-Peng Yin
- Faculty of Bioengineering, Zhuhai Campus of Zunyi Medical University, Guangdong, P.R. China
| | - Le Cai
- School of Chemical Science and Engineering, Yunnan University, Kunming, P.R. China
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Tian YN, Li BX, Zhang H, Jin L. [Development of dental robot implantation technology]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:1300-1306. [PMID: 38061874 DOI: 10.3760/cma.j.cn112144-20230908-00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
With the advancement of technology, intelligent technology has achieved unprecedented progress and breakthroughs in various fields. Dental implant robots represent a significant leap in the field of dental medical technology. This article aims to review the development of dental robot implantation technology both domestically and internationally, to compare the similarities and differences between existing dental implant methods and robotic implantation, to analyze the characteristics and current applications of robotic implantation technology, and to provide a forward-looking perspective. This review summarized 63 literatures and compared 1 176 implants, dental robot implantation demonstrates significant advantages in terms of precision, efficiency, and minimally invasive procedures. It effectively addresses issues such as implant position deviation, limited surgical visibility, and restricted operating space associated with traditional implantation methods. With widespread adoption in the future, it may reduce the overall technological expenses, and optimize its advantages and potential benefits.
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Affiliation(s)
- Y N Tian
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - B X Li
- Department of Orthodontics, The Second Affiliated Hospital of Zhejiang University School of Medicine, School of Stomatology, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou 310009, China
| | - H Zhang
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - L Jin
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Chu W, Ma LL, Li BX, Li MC. Clinical significance of vascular endothelial growth factor and endothelin-1 in serum levels as novel indicators for predicting the progression of diabetic nephropathy. EUR J INFLAMM 2023. [DOI: 10.1177/1721727x231151526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Objective: Early diagnosis and intervention of diabetic nephropathy (DN) is necessary to optimize therapy in order to delay the progression of diabetes. This research aimed to reveal the change of vascular endothelial growth factor (VEGF) and endothelin-1 (ET-1) in patients with DN, and to assess possible correlations with glycated hemoglobin (HbAlc) values. Methods: The present study was a retrospective, single-center study conducted at a teaching hospital in the northeast China. A total of 120 patients were divided into proteinuria-positive group ( n = 40), the microalbuminuria group ( n = 40), and the high proteinuria group ( n = 40) according to the urinary albumin excretion rate (UAER), and 40 healthy volunteers were selected as the control group. The levels of VEGF, ET-1 and HbA1c were measured in all subjects and principal component analysis (PCA) was performed to classify and reveal correlations between VEGF, ET-1 and HbA1c. Results: Compared to the control group, a significant difference in the increase of HbA1c was detected in group I, II and III. A significant increase in the concentrations of serum VEGF and ET-1 was also observed. HbA1c in DN patients had proven to be positively correlated with VEGF (r = 0.7941; p < 0. 0001) and ET-1 (r = 0.8504; p < 0.0001) respectively. Conclusion: The elevated levels of VEGF and ET-1 in serum have been proposed as being able to supplement the additional information about the progression of DN. These data suggest that the decrease in endothelial function may be related to poor glycemic control.
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Affiliation(s)
- Wei Chu
- Department of Renal Medicine, People’s Hospital of Jilin, Jilin, China
| | - Lin-Lin Ma
- Department of Clinical Laboratory, Beihua University, Jilin, China
| | - Bin-Xian Li
- Department of Clinical Laboratory, Beihua University, Jilin, China
| | - Ming-Cheng Li
- Department of Molecular diagnosis, Beihua University, Jilin, China
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Wu CC, Hou BC, Yang YH, Li XF, Ma HC, Li BX. Circ_0084188 promotes colorectal cancer progression by sponging miR-654-3p and regulating kruppel-like factor 12. Kaohsiung J Med Sci 2023; 39:1062-1076. [PMID: 37698263 DOI: 10.1002/kjm2.12749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/13/2023] [Accepted: 07/31/2023] [Indexed: 09/13/2023] Open
Abstract
To investigate the biological role and mechanism of circ_0084188 in colorectal cancer (CRC). Real-time quantitative polymerase chain reaction and western blot assay were used to detect RNA levels and protein levels in CRC cell lines (HCT116 and SW480), respectively. Cell proliferation was evaluated by Cell Counting Kit-8 assay, 5-ethynyl-2'-deoxyuridine assay, and colony formation assays. Cell apoptosis was determined using flow cytometry. Cell migration and invasion were measured by transwell assay. Sphere formation efficiency was determined by sphere formation assay. The interaction between microRNA-654-3p (miR-654-3p) and circ_0084188 or Kruppel-like factor 12 (KLF12) was confirmed by a dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Xenograft in CRC mice model was utilized for exploring the role of circ_0084188 in vivo.Circ_0084188 was overexpressed in CRC tissues and cells. Circ_0084188 silencing suppressed cell proliferation, migration, invasion, and stemness and induced apoptosis in CRC cells. Circ_0084188 acted as a sponge for miR-654-3p, and circ_0084188 regulated CRC cell behaviors via sponging miR-654-3p. Moreover, KLF12 was a target of miR-654-3p, and miR-654-3p overexpression inhibited the malignant behaviors of CRC cells by downregulating KLF12. Mechanically, circ_0084188 sponged miR-654-3p to regulate KLF12 expression in CRC cells. In addition, circ_0084188 downregulation inhibited tumor growth in vivo.Circ_0084188 knockdown might repress CRC progression partially via regulating the miR-654-3p/KLF12 axis, providing a novel insight into the pathogenesis of CRC.
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Affiliation(s)
- Cui-Cui Wu
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Bai-Chun Hou
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Yu-Han Yang
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Xue-Feng Li
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hong-Chao Ma
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Bin-Xian Li
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
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Wang CY, Gan D, Li CZ, Zhang SQ, Li BX, Zhu L, Liu JQ, Liu H, Tuo GT, Zhang FM, Cai L. A New Highly Oxygenated Polyketide Derivative from Trichoderma sp. and Its Antifungal Activity. Chem Biodivers 2022; 19:e202200671. [PMID: 36373236 DOI: 10.1002/cbdv.202200671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
A new highly oxygenated polyketide derivative, trichodersine (1), together with fourteen known compounds (2-15) were isolated from Trichoderma sp. MWTGP-04. The structure of trichodersine (1) was established based on comprehensive spectroscopic data analysis, and biogenesis argument. The results of double culture experiments indicated that the strain exhibited potential antifungal activity. The antifungal activities of all isolated compounds were evaluated, among them compound 1 exhibited remarkable antifungal activities against Fusarium solani, Plectosphaerella cucumerina, Alternaria panax, and Aspergillus niger, with minimum inhibitory concentrations (MICs) of 4, 4, 16, and 32 μg/mL, respectively. In addition, the antifungal experiments of polyketide derivatives (1-3) disclosed that their degree of oxidation was a key factor affecting the antifungal activity.
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Affiliation(s)
- Cheng-Yao Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Dong Gan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Chen-Zhe Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Sheng-Qi Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Bin-Xian Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Li Zhu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Jia-Qi Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Han Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Gui-Tao Tuo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Feng-Mei Zhang
- R&D Center of China Tobacco Yunnan Industry Co., Ltd., Kunming, 650231, P. R., China
| | - Le Cai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
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Ma LL, Li BX, Meng X, Li MC. Clinical and microbiological profile of bacterial pathogens from patients with diabetic foot infections at a teaching hospital in the northeast China. EUR J INFLAMM 2022. [DOI: 10.1177/1721727x221127874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Diabetic foot ulcer infection (DFI) is a frequent complication of diabetes. Objective: The aim is to determine the clinical and microbiological profiles and the antibiotic resistance phenotype, analyze the DFIs risk factors. Methods: The present study is a retrospective, single-center study conducted at a teaching hospital in the northeast China. 242 cases of patients with diabetic foot disease Wagner grade 0–5 over 2 years were screened and the recovered data consisted of the clinical features, risk factors, etiology and drug resistant profiles. Results: The total percentage of Gram-negative rods (GNRs) and Gram-positive cocci (GPCs) was 138 (54.92%) and 113 (45.02%). The most common isolates were Pseudomonas aeruginosa and Staphylococcus aureus, accounting for 22.37% and 19.74%, respectively. Logistic regression analysis showed that the duration of ulcer, duration of antibiotic use, Wagner classification and osteomyelitis were risk factors for multi-drug resistant (MDR) bacteria infection ( p<0.05). Conclusion: The predominate pathogens of patients with DFI were GNRs, followed by GPCs in the region. They exhibited the different antibiotic resistance phenotype. The data provided advice on selection of highly sensitive antibiotics in the management of DFIs.
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Affiliation(s)
- Lin-Lin Ma
- Department of Clinical Laboratory, Beihua University, Jilin, China
| | - Bin-Xian Li
- Department of Clinical Laboratory, Beihua University, Jilin, China
| | - Xue Meng
- Department of Molecular Diagnosis, Beihua University, Jilin, China
| | - Ming-Cheng Li
- Department of Molecular Diagnosis, Beihua University, Jilin, China
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Huang ZB, Cai J, Lin ZB, Zhao ZQ, Li BX. [Research Progress on the Effect of Synthetic Cathinones on Animal Behavior]. Fa Yi Xue Za Zhi 2021; 37:561-568. [PMID: 34726012 DOI: 10.12116/j.issn.1004-5619.2021.310406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Indexed: 11/30/2022]
Abstract
Abstract Synthetic cathinones are a class of new psychoactive substances with a structure similar to amphetamine drugs, which can produce excitatory effects similar to drugs such as amphetamine and cocaine after being taken. In recent years, the abuse of synthetic cathinones worldwide has become increasingly serious, posing a serious threat to social security and public health. This article focuses on several common synthetic cathinones, collects their research results in animal autonomous activity experiments and drug dependence model experiments and summarizes their relevant experimental conclusions in animal body temperature regulation, learning and memory, and anxiety, in order to provide data reference and method guidance for the domestic development of related drug research.
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Affiliation(s)
- Z B Huang
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - J Cai
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Z B Lin
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Z Q Zhao
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - B X Li
- School of Policing Studies, Shanghai University of Political Science and Law, Shanghai 201701, China
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Xie ZY, Cao G, Kong C, Chen JJ, Wang T, Zheng S, Li BX, Li YX, Zu WL, Ye HF. [Screening and analysis of Treponema pallidum specific antibody among childbearing age people in rural areas of Yunnan province, 2013-2017]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1475-1481. [PMID: 34814570 DOI: 10.3760/cma.j.cn112338-20210203-00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To determine the prevalence, epidemiological characteristics, and related factors of syphilis infection among rural childbearing age people to promote medical interventions on pre-pregnancy aristogenesis and syphilis infection in Yunnan province. Methods: The subjects in this study were 18-49-year-old rural couples of childbearing age from the National Free Preconception Health Examination Project in Yunnan province during 2013-2017. The descriptive study was carried out to determine the positive rate of Treponema pallidum specific antibody (TPsAb) and related sociodemographic characteristics. Results: The overall positive rate of TPsAb was 0.38% (8 204/2 160 455) in 2 160 455 rural childbearing age people in Yunnan. The positive rate of TPsAb was 0.39% (4 019/1 040 981) in men,higher than that in women (0.37%,4 185/1 119 474). The positive rate of TPsAb was highest in the age group 45-49 years (0.70%,158/22 511). The positive rate of TP antibody in the minority ethnic groups and Han ethnic groups appeared the same (0.38%). However,the highest positive rate of TPsAb was 0.77% (461/60 153) in Hani ethnic group among all the 17 minority ethnic groups. People with education level of primary education had the highest anti-TP positive rate (0.54%,2 327/431 275). The positive rate of TPsAb appeared the highest in Zhaotong (0.73%, 2 049/281 614) area among all the 16 prefectures of the province. The positive rate of TPsAb in the population from the impoverished regions (0.50%,2 963/590 039) was higher than in other disadvantaged areas (0.34%, 3 115/929 368) or areas with average income (0.33%,2 126/641 048). Significant differences appeared in the positive rate of TPsAb among populations of different ages, ethnic, education level, and economic level groups (trend χ2 test, P<0.001). Conclusions: The positive rate of TP antibody in rural childbearing age people in Yunnan was related to multi factors,including sex,age,ethnic group,education level,area, residence, and local economic situation. The positive rate of TPsAb was higher in men than in women. And people with elder age, lower education level, being Hani or Lahu ethnic group, and Zhaotong areas had higher TPsAb positive rates and higher syphilis infection risk.
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Affiliation(s)
- Z Y Xie
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - G Cao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education,Yunnan Provincial Center for Research & Development of Natural Products, Kunming 650091, China
| | - C Kong
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - J J Chen
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - T Wang
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - S Zheng
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - B X Li
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - Y X Li
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - W L Zu
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
| | - H F Ye
- Population and Family Planning Institute of Yunnan Province, Key Laboratory of Fertility Regulation and Minority Birth Health Research of Yunnan Province, Key Laboratory of Preconception Health in Western China of National Health Commission, Kunming 650021, China
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Gao YY, Li XX, He LF, Li BX, Mu W, Liu F. Effect of Application Rate and Timing on Residual Efficacy of Pyraclostrobin in the Control of Pepper Anthracnose. Plant Dis 2020; 104:958-966. [PMID: 31944880 DOI: 10.1094/pdis-03-19-0435-re] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Anthracnose is a devastating disease that seriously affects pepper production worldwide. Anthracnose management is currently a major problem because of the widespread and long period of infection of this disease. Therefore, determination of the optimal fungicide application timing is important for controlling anthracnose in a timely manner . In vitro sensitivity tests showed no significant difference in the pyraclostrobin sensitivity of Colletotrichum scovillei collected from 2016 and 2017, with mean half maximal effective concentration values of 0.349 to 0.542 and 0.0475 to 0.0639 mg/liter for the inhibition of mycelial growth and spore germination, respectively. Fungicide application initiated at the full-bloom stage could significantly delay anthracnose disease onset, decrease anthracnose incidence and development (23.67 to 89.80%), and increase pepper yield by 10.7 to 29.2%. In addition, the application dosage was decreased by >50%. BF-500-3, the main metabolite of pyraclostrobin, was detected in pepper fruit and exhibited high inhibitory activity against C. scovillei. The final residues of all fungicides at different application timing were below maximum residue limits. Moreover, structural equation modeling indicated that application timing plays the most important role in anthracnose disease inhibition. The tank mixtures of pyraclostrobin with tebuconazole and fludioxonil showed more satisfactory efficacy (69.87 to 78.36%) against anthracnose than did pyraclostrobin alone under field conditions. This study is the first to determine the best fungicide application timing for anthracnose management. These results establish the basis for sustainable development of the pepper industry.
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Affiliation(s)
- Y Y Gao
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - X X Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - L F He
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - B X Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - W Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - F Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
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Liu SD, Qi L, Li BX, Li X, Fang T, Song B. [Comparison on efficacy and safety of different bridging anticoagulation therapies in patients undergoing mechanical heart valve replacement surgery]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:130-135. [PMID: 32135613 DOI: 10.3760/cma.j.issn.0253-3758.2020.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of different bridging anticoagulant therapies in patients undergoing mechanical heart valve replacement (MHVR) surgery. Methods: Consecutive patients undergoing MHVR surgery from January 2018 to December 2018 in First Hospital of Lanzhou University were prospectively enrolled in this study. Patients were divided into unfractionated heparin (UFH) group and low molecular weight heparin (LMWH) group according to the postoperative bridging anticoagulation methods. Preoperative clinical data and postoperative related time and cost parameters, including drainage time, duration of stay in intensive care unit (ICU), postoperative time (interval from end of operation to discharge) and INR stabilization time (interval from start of bridge anticoagulation to INR value reaching the standard for 2 consecutive days) of all enrolled patients were collected, and all patients were followed up for 4 weeks and thromboembolic or bleeding events were analyzed. Multivariate logistic regression was used to determine the independent prognostic factors of thromboembolic or bleeding events after MHVR receiving various bridging anticoagulant therapies. Results: A total of 217 patients were included in the study, including 120 patients in the UFH group and 97 patients in the LMWH group. Stroke occurred in two patients in the UFH group, while no stroke event occurred in the LMWH group. The incidence of bleeding events was significantly higher (9.28%(9/97) vs. 1.67%(2/120), P=0.02), while the drainage time, duration of stay in ICU, postoperative time, INR stabilization time were all significantly shorter in LMWH group than in UFH group (all P<0.05). Multivariate logistic regression analysis showed that bridging anticoagulation therapies (OR=0.18, 95%CI 0.04-0.86, P=0.03), fibrinogen level (OR=1.99, 95%CI 1.16-3.41, P=0.01) and creatinine level (OR=1.05, 95%CI 1.01-1.08, P=0.04) were independent prognostic factors for bleeding events. Conclusion: LMWH use is associated with increased risk of bleeding events, but can significantly reduce the drainage time, duration of stay in ICU, postoperative time, INR stabilization time in patients post MHVR surgery.
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Affiliation(s)
- S D Liu
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - L Qi
- Department of Cardiovascular Surgery, First Hospital of Lanzhou University, Lanzhou 730000, China
| | - B X Li
- Department of Pharmacy, First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X Li
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - T Fang
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - B Song
- Department of Cardiovascular Surgery, First Hospital of Lanzhou University, Lanzhou 730000, China
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Abstract
Anthracnose caused by Colletotrichum scovillei is one of the most destructive diseases affecting chili production. Disease control mainly relies on conventional fungicides, and repeated exposure to single-site mode-of-action fungicides may pose a risk for the development of resistant isolates within the population. Our previous study suggested that pyrisoxazole has strong inhibitory activity against C. scovillei in vitro. However, the effects of pyrisoxazole on the C. scovillei infection process and the performance of pyrisoxazole in the field remain unclear. In this study, pyrisoxazole exhibited strong inhibitory activity against the mycelial growth, appressorium formation, and appressorium diameter of C. scovillei, with half maximal effective concentration values of 0.1986, 0.0147, and 0.0269 μg/ml, respectively, but had no effect on sporulation, even at the highest concentration of 1.6 μg/ml. The baseline sensitivity curves were unimodal with a long right-hand tail. The in vivo data showed that pyrisoxazole provided both preventive and curative activity against anthracnose on chili. Pyrisoxazole decreased the incidence of anthracnose and reduced disease progress. The results of electron microscopy showed that pyrisoxazole can affect the C. scovillei infection process by altering mycelial morphology, degrading conidia and germ tubes, suppressing conidial germination and appressorium formation, and enhancing conidiophore production. Pyrisoxazole can be used to effectively control anthracnose under field conditions and increase chili yield; moreover, no phytotoxicity symptoms were observed after treatment. These results provide new insight into the mechanisms by which pyrisoxazole controls disease and suggest that pyrisoxazole is a feasible alternative for the management of anthracnose in chili.
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Affiliation(s)
- Y Y Gao
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - X X Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - L F He
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - B X Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - W Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - F Liu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
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Guo XS, Wen SH, Dong WW, Li BX, Chen ZY, Wang LL, Guan DW, Zhao R. Expression of Nrf2 in Different Cells after Human Cerebral Cortex Contusion. Fa Yi Xue Za Zhi 2019; 35:273-279. [PMID: 31282619 DOI: 10.12116/j.issn.1004-5619.2019.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To observe the expression changes of nuclear factor-erythroid derived 2-related factors (Nrf2) in different cells at different time points after human cerebral cortex contusion, and to discuss its application in brain wound age estimation. Methods Thirty-six human brain tissues were selected, of which 6 were for control and 30 were cortical contusion at different time points post-injury, which were divided into 0-1 h, 3-6 h, 1-3 d, 5-7 d, and 10-14 d post-injury groups, with 6 cases in each group. Based on paraffin embedded sections, HE staining was used to observe the morphological changes post-injury, and double immunofluorescence staining was used to detect the expression of Nrf2 in neurons, astrocytes, and microglia. The number of positive cells was counted and statistical analysis was made. Results The number of neurons decreased 1-3 d post-injury. The expression of Nrf2 cells in neurons increased after injury, and the rate of positive cells peaked at 1-3 d post-injury. Glial cells were activated 1-3 d post-injury, and the activation peaked at 5-7 d post-injury. The cerebromalacia began to form at 10-14 d post-injury. Glial fibrillary acidic protein (GFAP) positive cells in mice increased gradually after injury and peaked at 5-7 d post-injury, while the proportion of Nrf2 in GFAP positive cells was relatively stable. After injury, ionized calcium-binding adapter molecule 1 (IBA1) positive cells increased and activated gradually. The expression proportion of Nrf2 in IBA1 positive cells increased gradually, reached its peak at 5-7 d post-injury, and then decreased. Conclusion The expression of Nrf2 in different cells involves in the biological function of different cells post-injury, and the dynamic expression of single cells has a time-dependent pattern. This may provide a new reference index for the wound age estimation of brain contusion in human.
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Affiliation(s)
- X S Guo
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - S H Wen
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - W W Dong
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - B X Li
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Criminal Investigation Police University of China, Shenyang 110035, China
| | - Z Y Chen
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - L L Wang
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - D W Guan
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
| | - R Zhao
- Center of Medico-legal Investigation, School of Forensic Medicine, China Medical University, Shenyang 110122, China.,Collaborative Laboratory of Intelligentized Forensic Science, Shenyang 110122, China
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13
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Wu MY, Huang QS, Le Guen K, Ilakovac V, Li BX, Wang ZS, Giglia A, Rueff JP, Jonnard P. Characterization of Pd/Y multilayers with B 4C barrier layers using GIXR and X-ray standing wave enhanced HAXPES. J Synchrotron Radiat 2018; 25:1417-1424. [PMID: 30179181 DOI: 10.1107/s1600577518009402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 06/29/2018] [Indexed: 06/08/2023]
Abstract
Pd/Y multilayers are high-reflectance mirrors designed to work in the 7.5-11 nm wavelength range. Samples, prepared by magnetron sputtering, are deposited with or without B4C barrier layers located at the interfaces of the Pd and Y layers to reduce interdiffusion, which is expected from calculating the mixing enthalpy of Pd and Y. Grazing-incident X-ray reflectometry is used to characterize these multilayers. B4C barrier layers are found to be effective in reducing Pd-Y interdiffusion. Details of the composition of the multilayers are revealed by hard X-ray photoemission spectroscopy with X-ray standing wave effects. This consists of measuring the photoemission intensity from the samples by performing an angular scan in the region corresponding to the multilayer period and an incident photon energy according to Bragg's law. The experimental results indicate that Pd does not chemically react with B nor C at the Pd-B4C interface while Y does react at the Y-B4C interface. The formation of Y-B or Y-C chemical compounds could be the reason why the interfaces are stabilized. By comparing the experimentally obtained angular variation of the characteristic photoemission with theoretical calculations, the depth distribution of each component element can be interpreted.
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Affiliation(s)
- M Y Wu
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
| | - Q S Huang
- Key Laboratory of Advanced Micro-Structured Materials MOE, Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - K Le Guen
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
| | - V Ilakovac
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
| | - B X Li
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
| | - Z S Wang
- Key Laboratory of Advanced Micro-Structured Materials MOE, Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - A Giglia
- CNR, Istituto Officina Materiali, 34149 Trieste, Italy
| | - J P Rueff
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
| | - P Jonnard
- Laboratoire de Chimie Physique - Matière et Rayonnement, Sorbonne University, UMR CNRS 7614, 4 Place Jussieu, 75005 Paris, France
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14
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Zhang MZ, Li BX, Zhao R, Guan DW, Zhang GH, Wu X, Zhu BL, Li RB. [Forensic Analysis of 6 Cases of Sudden Death due to Hyperthyroid Heart Disease]. Fa Yi Xue Za Zhi 2017; 33:482-485. [PMID: 29275552 DOI: 10.3969/j.issn.1004-5619.2017.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To analyse the cases of sudden death due to hyperthyroid heart disease, and explore the general information of deaths and the forensic pathological characteristics to provide reference evidence for forensic identification of such cases. METHODS Six cases of sudden death due to hyperthyroid heart disease between 2001 and 2016 were selected from School of Forensic Medicine, China Medical University. The general information (gender and age), clinical manifestations, medical history, anatomical and histopathological findings, biochemical parameters and cause of death were analysed retrospectively. RESULTS Most of the 6 patients had definite history of hyperthyroidism, and they all showed certain degrees of symptoms of cardiovascular disease; had obvious incentive factors of death; histopathological examination of thyroid conformed to the performances of diffuse toxic goiter; with increase of cardiac weight, dilatation of cardiac chambers, myocardial hypertrophy and focal necrosis; postmortem biochemical analyses of pericardial fluid could be used as an additional method for diagnostic of sudden death due to hyperthyroid heart disease. CONCLUSIONS The identification of death due to hyperthyroid heart disease should be based on the clinical history and the results of autopsy, histopathological examination, postmortem toxicology tests. The postmortem biochemical detection of thyroid and cardiac function should be performed if necessary.
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Affiliation(s)
- M Z Zhang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - B X Li
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - R Zhao
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - D W Guan
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - G H Zhang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - X Wu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - B L Zhu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - R B Li
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
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Wong KF, Wong WW, Li BX, Song YZ. The first case of Silver-Russell syndrome accompanied by linea alba hernia in China. Singapore Med J 2010; 51:e9-e11. [PMID: 20200765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A 10-month-old Chinese boy presented with delayed motor development for seven months. Blood and biochemistry investigations revealed no abnormalities. The physical examination showed poor postnatal growth (below -2 standard deviation from the mean at diagnosis), preservation of the occipitofrontal head circumference with delayed closure of the anterior fontanel, a classical triangular facial phenotype, asymmetry of the lower extremities and other characteristic features that fulfil the diagnostic criteria of Silver-Russell syndrome clinically. As PubMed and web searches revealed no similar findings, we believe that this may be the first case of Silver-Russell syndrome with linea alba hernia and pes varus reported in China, and possibly the world. The genetic deficit responsible for this case is still under investigation.
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Affiliation(s)
- K F Wong
- Department of Pediatrics, First Affiliated Hospital, Jinan University, West 613, Huangpu Dadao Xi, Guangzhou 510632, Guangdong Province, China.
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Li BX, Ge JW, Li YJ. Porcine aminopeptidase N is a functional receptor for the PEDV coronavirus. Virology 2007; 365:166-72. [PMID: 17467767 PMCID: PMC7103304 DOI: 10.1016/j.virol.2007.03.031] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Revised: 01/18/2007] [Accepted: 03/07/2007] [Indexed: 11/23/2022]
Abstract
Porcine epidemic diarrhea virus (PEDV) causes lethal diarrhea in piglets that leads to great economic losses in East Asia. It was reported that aminopeptidase N (APN) is the receptor for transmissible gastroenteritis virus (TGEV), human coronavirus 229E (HCoV-229E) and feline coronavirus (FeCoV) which all belong to group I coronavirus including as well as PEDV. It was also confirmed previously that porcine aminopeptidase N (pAPN) can bind to PEDV, and anti-pAPN antibodies may inhibit the combination. To investigate whether pAPN is a receptor for PEDV, we transfected MDCK cells with porcine aminopeptidase (pAPN) cDNA and this enabled non-susceptible cells to support PEDV replication and serial viral propagation. Moreover, the infection was blocked by antibodies against pAPN, implies the critical role of pAPN during virus entry. In addition, immunofluorescence assays for detection of pAPN and PEDV antigens, together with neutralization assays using antibodies against pAPN, further confirmed the correlation between pAPN expression and viral replication in pAPN-transfected MDCK cells. These results indicate that pAPN is a functional receptor for PEDV.
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Affiliation(s)
- B X Li
- Department of Preventive Veterinary, College of Veterinary, Northeast Agricultural University, 59 Mucai Street, 150030, Harbin, China
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17
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Zhang XQ, Wu HZ, Li BX, Xu YS, Wu JB, Lin LL, Yang Y, Li ZM, Lin XH, Zhang QY. Mutations in the ATP2C1 gene in Chinese patients with Hailey-Hailey disease. Clin Exp Dermatol 2007; 31:702-5. [PMID: 16901313 DOI: 10.1111/j.1365-2230.2006.02204.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hailey-Hailey disease (HHD; MIM 16960) is a rare autosomal dominant hereditary disorder characterized by recurrent eruption of vesicles and bullae, predominantly involving the body folds. It is caused by heterozygous mutations in the ATP2C1 gene, encoding the human secretory pathway Ca2+/Mn2+-ATPase protein 1 (hSPCA1). When we studied Chinese patients with HHD, we found two different heterozygous mutations, Q506X and G353V, the former previously reported in a Hungarian patient, and the latter being a novel mutation. In a 38-year-old patient from a four-generation pedigree with a 3-year history of severe recurrent blisters, we identified a C-->T transition at nucleotide 1696, c(1696C-->T), in exon 17 of ATP2C1, resulting in a nonsenes mutation, Gln506X, which resulted in a premature termination codon. In the second patient, who represented a occurrence of sporadic Hailey-Hailey disease, a G-->T transversion of nucleotide, c(G1238T), in exon 13 of ATP2C1 was detected, which resulted in a Gly353-->Val amino acid substitution (G353V). Our molecular findings further demonstrate that the mutational events in the human ATP2C1 gene encoding the hSPCA1 pump play an important role in the pathogenesis of HHD.
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Affiliation(s)
- X Q Zhang
- Department of Dermatology, No. 1 Hospital, Wenzhou Medical College, Wenzhou, Zhejiang, China.
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Chu MX, Li BX, Wang JY, Ye SC, Fang L. Association between PCR-SSCP of growth differentiation factor 9 gene and high prolificacy in Small Tail Han sheep. Anim Biotechnol 2004; 15:111-20. [PMID: 15595697 DOI: 10.1081/labt-200032582] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Small Tail Han sheep that has significant characteristics of high prolificacy and nonseasonal ovulatory activity is an excellent local sheep breed in P.R. China. The lambing percentage averaged 260% in Small Tail Han sheep. Growth differentiation factor 9 (GDF9) gene, which was essential for growth and differentiation of early ovarian follicles, was considered as a possible candidate gene for litter size in Small Tail Han sheep. The genetic polymorphism of a part of the GDF9 gene was detected in 130 ewes of Small Tail Han sheep by PCR-SSCP. The results indicated that there were two genotypes (AA and AB) detected by two primer pairs. In both exon 1 and exon 2 of the GDF9 gene in Small Tail Han sheep, frequencies of AA genotype were 0.846 and 0.908, frequencies of AB genotype were 0.154 and 0.092, frequencies of A allele were 0.923 and 0.954, and frequencies of B allele were 0.077 and 0.046, respectively. The results of chi2 fitness test indicated that both exon 1 and exon 2 of the GDF9 gene were in Hardy-Weinberg equilibrium (p > 0.05) in Small Tail Han sheep. Least squares means of litter size in the first and the second parity for genotype AA were 0.30 (p <0.05) and 0.77 (p <0.0001) more than those for genotype AB detected in exon 1 of the GDF9 gene in Small Tail Han sheep, respectively. Fragments detected in exon 2 of the GDF9 gene had no significant effect (p > 0.05) on litter size in both the first and the second parity in Small Tail Han sheep. Litter size in sheep is lowly heritable, expressed only in females, and manifested relatively late in life. Access to genetic markers would thus be advantageous in selection programs.
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Affiliation(s)
- M X Chu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, PR China.
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Wang JX, Zhang LA, Li BX, Zhao YC, Wang ZQ, Zhang JY, Aoyama T. Cancer incidence and risk estimation among medical x-ray workers in China, 1950-1995. Health Phys 2002; 82:455-466. [PMID: 11906134 DOI: 10.1097/00004032-200204000-00004] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Cancer incidence (1950-1995) among 27,011 medical diagnostic x-ray workers was compared by means of O/E system with that of 25,782 other medical specialists employed between 1950 and 1980 to provide evidence of human malignant tumors produced by protracted and fractionated exposure to ionizing radiation and to assess resultant cancer risk. Significant cancer risk was seen among diagnostic x-ray workers (RR = 1.2, 95% CI: 1.1-1.3). Significantly elevated risks were found for leukemia and cancers of skin, female breast, lung, liver, bladder, and esophagus; the RRs were 2.2, 4.1, 1.3, 1.2, 1.2, 1.8, and 2.7, respectively. The patterns of risk associated with years since beginning x-ray work and with age and calendar year of initial employment suggest that the excesses of leukemia, skin cancer, and female breast cancer-and possibly thyroid cancer-were related to occupational exposure to x rays. Because of a lack of individual dosimetry for Chinese medical x-ray workers (CMXW) before 1985, the dose was reconstructed by physical and biological retrospective dosimetry methods. The cancer risk of CMXW was estimated based on the reconstructed dose. The average cumulative dose for the earlier cohort (employed before 1970) was 551 mGy, and for the later cohort (employed from 1970 to 1980) it was 82 mGy. The RRs of leukemia and solid cancer were significantly high for the earlier cohort: 2.4 for leukemia, 1.2 for solid cancer. But no significant increase of RR was evident for the later cohort. The RR of leukemia was 1.7 and 1.1 for solid cancer. This means a significant cancer risk can be induced by long term fractionated exposure to ionizing radiation when the cumulative dose reaches a certain level.
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Affiliation(s)
- J X Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjim.
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Li BX, Yang BF, Zhou J, Xu CQ, Li YR. Inhibitory effects of berberine on IK1, IK, and HERG channels of cardiac myocytes. Acta Pharmacol Sin 2001; 22:125-31. [PMID: 11741516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
AIM To study the effects of berberine on inward rectifier potassium current (IK1) and outward delayed rectifier potassium current (IK) of guinea pig ventricular myocytes, and on human ether-a-go-go related gene (HERG) channel expressed in Xenopus oocytes. METHODS Whole cell patch-clamp and geneclamp techniques were used to record ionic currents. RESULTS Berberine prolonged action potential duration (APD) and inhibited IK1 and IK in a concentration-dependent manner. Berberine 100 micromol/L increased APD90 from (450 +\- 48) ms to (888 +\- 90) ms (n = 6, P < 0.01), and inhibited IK1 by 65 % +\- 7 % (n = 6, P < 0.01). Berberine 50 micromol/L inhibited IK by 57 % +\- 6 %, IKtail by 53 % +\- 6 % (n = 6, P < 0.01). Berberine produced a voltage-dependent block on IK that increased with stronger depolarization, and once all channels were activated, there was no further block at positive potentials. Berberine blocked the HERG channels potently with an IC50 value of approximately 75 micromol/L. This block was voltage-dependent, suggesting that it probably bind to either open or inactivated HERG channels. CONCLUSION Berberine prolonged APD and possessed blocking effect on IK1, IK, and HERG channel expressed in Xenopus oocytes. The antiarrhythmic mechanism of berberine is related to its inhibitory effects on IK1, IK, and HERG channel.
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Affiliation(s)
- B X Li
- Department of Pharmacology, Harbin Medical University, Harbin 150086, China
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21
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Wang JX, Zhang LA, Li BX, Zhao YC, Gao ZW, Wang ZQ, Zhang JY. [Cancer risk assessment among medical X-ray workers in China]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:65-8, 72. [PMID: 12905823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Cancer incidence(1950-1995) among 27,011 medical X-ray workers in comparison with 25,782 non X-ray medical specialists between 1950 and 1980 in China was investigated. The average cumulative dose received by the X-ray workers also reconstructed by retrospective dosimetry methods. Significant cancer risk was seen among medical X-ray workers(RR = 1.2). Significantly elevated risks were found in leukemia, cancer of skin, female breast, lung, liver, bladder and esophagus, the RRs were 2.2, 4.1, 1.3, 1.2, 1.2, 1.8 and 2.7 respectively. The patterns of cancer risk were associated with years since beginning of X-ray work, age and calendar year of initial employment and cumulative dose suggest that the risks of leukemia, skin cancer and female breast cancer, possibly thyroid cancer were related to occupational exposure to X-rays. A significant cancer risk could be induced by prolonged exposure to low dose ionizing radiation when the cumulative dose reached a certain level.
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Affiliation(s)
- J X Wang
- Department of Radiation Effects, Institute of Radiation Medicine, CAMS, PUMC, Tianjin 300192, China.
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Tian JF, Li BX, Liu DG, Zhou CY, Wang LL, Han H. [Effects of modified SD therapy on Bell's palsy]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:551-3. [PMID: 12563956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the effects of a modified SD therapy (intravenous high dose hydrocortisone and low molecular dextran) on Bell's palsy(BP), and to avoid the severe side-effects such as hepatic and renal disorders during the treatment. METHOD Seventy-one BP patients were treated with modified SD method (modified group), thirty-two BP patients took prednisone (control group), and the curative rates of two therapies were compared, in the meanwhile recorded the side effects in detail. RESULT Curative rate in modified group was 95.8% (House-Brakmsnn I-II) and in control group was 81.2% (P < 0.05). In modified group, the curative rate (I grade) in the patients were treated within 24 hours following onset was 75.0%, and the curative rate in other three subgroups were treated within 24-48 hours, 2-3 day and 3-5 day following onset was 43.8%, 26.7%, 18.8% respectively. Modified group had not shown hepatic and renal disorders or gastric ulcer. CONCLUSION Modified SD method may increase recoverable rate and can avoid significant side effects for BP, and emphasizes the importance of the administration of SD therapy in the early stage of the disease.
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Affiliation(s)
- J F Tian
- Department of Otorhinolaryngology, 304th Hospital of People's Liberation Army, Beijing 100037
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Li S, Ji H, Cheng X, Li BX, Ng TB. Antithrombotic and thrombolytic activities of Agkisacutacin, a snake venom proteinase, in experimental models. Gen Pharmacol 2000; 35:179-87. [PMID: 11827724 DOI: 10.1016/s0306-3623(01)00097-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The antithrombotic and thrombolytic activities of Agkisacutacin (Agk), a component isolated from Agkistrodon acutus, were determined in vitro and in vivo. The models employed included Chandler's model, arterio-venous shunt model and pulmonary embolus model. The effects of Agkisacutacin on coagulation, plasma fibrinogen and platelet aggregation induced by collagen, adenosine diphosphate (ADP) and thrombin were also investigated. The results showed that Agkisacutacin can significantly inhibit thrombus formation in Chandler's and arterio-venous shunt models, and accelerate thrombolysis of pulmonary emboli in rats. The data suggested that Agkisacutacin possessed antithrombotic and thrombolytic activities. Agkisacutacin was also partial characterized.
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Affiliation(s)
- S Li
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China.
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Cheng X, Qian Y, Liu Q, Li BX, Zhang M, Liu J. Purification, characterization, and cDNA cloning of a new fibrinogenlytic venom protein, Agkisacutacin, from Agkistrodon acutus venom. Biochem Biophys Res Commun 1999; 265:530-5. [PMID: 10558903 DOI: 10.1006/bbrc.1999.1685] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Agkisacutacin is a new fibrinogenlytic protein from Agkistrodon acutus venom. It consists of two heterologous subunits linked by an intersubunit disulfide bond. The cDNAs encoding the two chains of Agkisacutacin were cloned from a lambdagt11 cDNA library of the snake venom gland and sequenced, including the leader peptides (23/23 amino acid residues) and mature subunits (129/123 amino acid residues). It is structurally related to the family of IX/X-binding protein (IX/X-bp)-like proteins and shows high similarity (alpha-70%/beta-64%) to habu IX/X-bp from Trimeresurus flavoridis, but displays distinct biological activity with direct action on fibrinogen.
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Affiliation(s)
- X Cheng
- School of Life Science, University of Science and Technology of China, Hefei, Anhui, 230027, People's Republic of China
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Wang JX, Jia WH, Li BX. [Risk and influential factors of female breast cancer among medical diagnostic X-ray workers in China]. Zhonghua Liu Xing Bing Xue Za Zhi 1996; 17:325-7. [PMID: 9387594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
To study whether prolonged or repeated low-dose ionizing radiation could induce female breast cancer, we analyzed the incidence and risk factors of breast cancer among female medical diagnostic X-ray workers in China by cohort study and case-control study nested in the cohort. The risk of breast cancer enhanced significantly than the control group. It occurred in those who engaged in X-ray work before 1960, those who have been worked more than 25 years and those who are exposed before age 30, however, the age of onset cancer did not advance. The significant risk factors are accumulative radiation dose of the breast, obesity and family history of breast cancer. In addition, interaction could exists between obesity, non-lactation history and occupational X-ray exposure.
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Affiliation(s)
- J X Wang
- Institute of Radiation Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Tianjin
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Huang HY, Zhu WF, Li BX. [Relations of regulatory polypeptide and syndrome differentiation of traditional Chinese medicine of angina pectoris patients]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1996; 16:474-476. [PMID: 9387748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ninety cases of angina pectoris patients with the Deficiency of Heart Qi Syndrome (DHQS), Deficiency of Heart-Yin Syndrome (DHYS) and blood stasis in Heart vessels Syndrome (BSHVS) were studied. The number of patients were 30 for each group. Their regulatory polypeptides:atrial natri-uretic polypeptide (ANP), beta-Endorphine (beta-EP), Endothelin (ET), Angiotensin (A-II) were tested. Results showed that in comparing with normal level, P < 0.05 or < 0.01, ANP and beta-EP of them: DHQS > BSHVS > normal group > DHYS. ET and A-II of them: DHYS > BSHVS > normal group > DHQS. And the comparison between groups revealed that P < 0.05 or < 0.01. So ANP, beta-EP, ET and A-II were the principal material basis, and they could be the specific objective parameters of the Syndrome Differentiation.
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Affiliation(s)
- H Y Huang
- Hunan College of Traditional Chinese Medicine, Changsha
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Xu JY, Li BX, Cheng SY. [Short-term effects of Angelica sinensis and nifedipine on chronic obstructive pulmonary disease in patients with pulmonary hypertension]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1992; 12:716-8, 707. [PMID: 1304838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
UNLABELLED 40 COPD cases with pulmonary hypertension (PH) in remission stage were equally divided into four groups, 10 cases in each. Group 1-4 were treated with 25% Angelica sinensis (250 ml, iv. drip, qd), nifedipine (10 mg, po, tid), both Angelica sinensis+nifedipine and blank control respectively. The study was designed to investigate the changes of hemodynamics, pulmonary function and blood gas before and after the treatments by impedance rheopneumogram, lung function examination and blood gas analysis. RESULTS Mean pulmonary arterial pressure was decreased and cardiac output, PaO2 were increased significantly (P < 0.05 or P < 0.01) in group 3. The effects of group 3 appeared to be better than in other groups. The side effect of PaO2 lowering in group 2 was overcome in adding Angelica sinensis.
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Affiliation(s)
- J Y Xu
- Third Hospital of Huangshi, Hubei
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Abstract
A second follow-up of 27,011 diagnostic X-ray workers in China revealed a 21% greater incidence of cancer than expected based on the experience of 25,782 physicians who did not routinely use X-rays (RR = 1.21; 95% Cl: 1.08 to 1.35). This risk is lower than the 50% excess reported previously and reflects, in part, the reduced risk among workers first employed after 1965, when hospital exposures to radiation probably were lower than in earlier years. The X-ray workers were employed between 1950 and 1985 and followed for an average of 16.1 years. Significantly elevated risks were seen for leukemia (RR = 2.4, n = 34 cases), and cancers of the esophagus (RR = 5.2, n = 19), liver (RR = 1.8, n = 65), and skin (RR = 2.8, n = 9). Cancers of the breast (RR = 1.5, n = 20), thyroid (RR = 1.7, n = 8), and bone (RR = 7.6, n = 4) also occurred more often than expected. Non-significant deficits were observed for cancers of the oral cavity and pharynx (RR = 0.6, n = 16), colon and rectum (RR = 0.8, n = 20), stomach (RR = 0.8, n = 36), and lung (RR = 0.9, n = 45). Excess risks for leukemia and esophageal cancer were seen among men but not among women. The RR for leukemia was higher for X-ray workers who began employment before 1970 than for those who started more recently and also for those who were young when employment began. The patterns of risk associated with duration of work, and with age and calendar time of initial employment, suggest that the excesses of leukemia and skin cancer, and, possibly, cancers of the breast and thyroid, were due to occupational exposure to X-rays. However, there was little evidence that radiation contributed to the increased occurrences of liver or esophageal cancers.
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Affiliation(s)
- J X Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin
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Abstract
Cancer incidence among 27,011 diagnostic x-ray workers was compared to that of 25,782 other medical specialists employed between 1950 and 1980 in China. X-ray workers had a 50% higher risk of developing cancer than the other specialists [relative risk (RR) = 1.5; 95% CI = 1.3-1.7]. Leukemia was strongly linked to radiation work (RR = 3.5, n = 30). Cancers of the breast (RR = 1.4, n = 11), thyroid (RR = 2.1, n = 7), and skin (RR = 1.5, n = 6) were increased among x-ray workers employed for 10 or more years. High risks of cancers of the esophagus (RR = 3.5, n = 15) and liver (RR = 2.4, n = 48) were not consistent with a radiation effect since risk did not vary by duration of employment. This finding suggested that some differences might exist between groups of hospital workers in social class, alcohol intake, dietary habits, and other risk factors. No excess lung cancer (RR = 0.9, n = 22) or multiple myeloma (n = 0) was observed. Significant excesses of leukemia and cancers of the breast and thyroid occurred among x-ray workers first employed prior to 1960 when radiation exposures in China were high. In fact, it was not uncommon for employees to be given time off from x-ray work because their wbc count was severely depressed. These data indicated that repeated exposure to x-rays over many years can increase the risk of leukemia and several other tumors but apparently not that of lung cancer.
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Affiliation(s)
- J X Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin, China
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Li BX. [Giant hemangioma with thrombocytopenia--report of 11 cases treated by radiotherapy]. Zhonghua Fang She Xue Za Zhi 1983; 17:123-5. [PMID: 6226504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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